hub motor vs mid drive
Choosing the right motor type is one of the most important decisions when buying an electric bike. While both hub motors and mid-drive motors are legal in the UK, they deliver power very differently—and that difference matters in everyday riding.
What Is a Hub Motor?
A hub motor is located in the centre of either the front or rear wheel. It provides direct assistance to the wheel, independent of the bike’s gears.
Advantages:
- Lower purchase cost
- Simpler mechanical design
- Quiet operation
- Lower maintenance requirements
Limitations:
- Less efficient on steep hills
- Heavier wheel weight
- Less natural ride feel on inclines
What Is a Mid-Drive Motor?
A mid-drive motor is positioned at the crank, applying power through the bike’s chain and gears.
Advantages:
- Superior hill-climbing performance
- Better weight distribution
- More natural pedalling feel
- Greater efficiency at lower speeds
Limitations:
- Higher upfront cost
- Increased drivetrain wear
- More complex servicing
Which Is Better for UK Conditions?
For urban commuting, leisure riding, and flatter routes, hub motors perform extremely well and represent excellent value.
For hilly areas, heavier riders, or frequent long climbs, mid-drive systems offer a clear performance advantage.
Reliability & Maintenance
Hub motors are sealed systems with fewer moving parts. Mid-drives rely on the bike’s drivetrain, which may require more frequent maintenance under heavy use.
The Bottom Line
There is no universal “best” motor—only the most suitable one for your riding style, terrain, and budget.
Recommended reading:
- How Much Torque Do You Really Need on an Electric Bike?
- Cadence vs Torque Sensors Explained
Recommended options:
Examples of UK-legal bikes using both motor types can be viewed here.